Sunday, September 05, 2021

Hard Landing: Cessna 152, N946SF; accident occurred September 08, 2020 at Harvey Field Airport (S43), Snohomish, Washington

Aviation Accident Final Report - National Transportation Safety Board
Additional Participating Entity: 
Federal Aviation Administration / Flight Standards District Office; Des Moines, Washington

Investigation Docket - National Transportation Safety Board:

Location: Snohomish, Washington
Accident Number: WPR20CA302
Date & Time: September 8, 2020, 14:15 Local
Registration: N946SF
Aircraft: Cessna 152 
Aircraft Damage: Substantial
Defining Event: Hard landing
Injuries: 1 None
Flight Conducted Under: Part 91: General aviation - Instructional


The solo student pilot reported that during landing, upon touchdown, the airplane bounced. The student’s flight instructor, who was at a radio, instructed him to go around so the student pilot increased the engine power, maintained the flaps at 30º, and the airplane drifted left of runway centerline. As the student pilot reached about 10 ft above the ground in a nose up attitude, the flight instructor radioed him again to “pitch down.” The student pilot then lowered the nose, but the airplane continued to drift left, impacted the adjacent grass field, and came to rest nose down. The engine truss sustained substantial damage. The student pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The solo student pilot's improper landing flare, which resulted in a bounced landing and his subsequent improper go-around, which resulted in an impact with terrain. 


Personnel issues Decision making/judgment - Student/instructed pilot
Personnel issues Aircraft control - Student/instructed pilot
Aircraft Landing flare - Not attained/maintained
Personnel issues Delayed action - Student/instructed pilot

Factual Information

History of Flight

Landing-flare/touchdown Hard landing (Defining event)
Landing-flare/touchdown Collision with terr/obj (non-CFIT)

Pilot Information

Certificate: Student 
Age: 16, Male
Airplane Rating(s): None 
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): None 
Second Pilot Present: No
Instructor Rating(s): None 
Toxicology Performed: No
Medical Certification: Class 3 With waivers/limitations 
Last FAA Medical Exam: September 17, 2019
Occupational Pilot: No 
Last Flight Review or Equivalent:
Flight Time: (Estimated) 22 hours (Total, all aircraft), 22 hours (Total, this make and model), 1 hours (Pilot In Command, all aircraft), 22 hours (Last 90 days, all aircraft), 10 hours (Last 30 days, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Cessna 
Registration: N946SF
Model/Series: 152 No Series
Aircraft Category: Airplane
Year of Manufacture: 1978 
Amateur Built:
Airworthiness Certificate: Normal
Serial Number: 15282353
Landing Gear Type: Tricycle 
Seats: 2
Date/Type of Last Inspection: September 6, 2020 Annual
Certified Max Gross Wt.: 1670 lbs
Time Since Last Inspection: 896 Hrs
Engines: 1 Reciprocating
Airframe Total Time: 13464 Hrs as of last inspection
Engine Manufacturer: Lycoming
ELT: C91 installed, activated, aided in locating accident
Engine Model/Series: O-235=L2C
Registered Owner: 
Rated Power: 15 Lbs thrust
Operating Certificate(s) Held: On-demand air taxi (135), Pilot school (141)

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual (VMC)
Condition of Light: Day
Observation Facility, Elevation: KPAE,23 ft msl 
Distance from Accident Site: 10 Nautical Miles
Observation Time: 13:53 Local 
Direction from Accident Site: 270°
Lowest Cloud Condition: Clear
Visibility: 9 miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 6 knots / 
Turbulence Type Forecast/Actual: None / None
Wind Direction: 360° 
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.21 inches Hg
Temperature/Dew Point: 24.4°C / -0.6°C
Precipitation and Obscuration:
Departure Point: Snohomish, WA 
Type of Flight Plan Filed:
Destination: Snohomish, WA
Type of Clearance: None
Departure Time:
Type of Airspace: Class G

Airport Information

Airport: Harvey Field S43
Runway Surface Type: Asphalt; Grass/turf
Airport Elevation: 23 ft msl 
Runway Surface Condition: Dry
Runway Used: 33R 
IFR Approach: None
Runway Length/Width: 2672 ft / 36 ft
VFR Approach/Landing: Go around

Wreckage and Impact Information

Crew Injuries: 1 None 
Aircraft Damage: Substantial
Passenger Injuries:
Aircraft Fire: None
Ground Injuries: 
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude: 47.904868,-122.10274 (est)

1 comment:

  1. clearly not ready to solo with 1 hours (Pilot In Command, all aircraft), 22 hours (Last 90 days, all aircraft), 10 hours (Last 30 days, all aircraft)
    the student PIC's reaction time to a radio verbal command while multi tasking a landing is to slow, best let his muscle memory reaction without hesitation control the outcome.